Search a number
-
+
3115047 = 31379873
BaseRepresentation
bin1011111000100000100111
312212021001010
423320200213
51244140142
6150433303
735322525
oct13704047
95767033
103115047
111838421
121062833
13850b30
145b1315
15417e9c
hex2f8827

3115047 has 8 divisors (see below), whose sum is σ = 4472944. Its totient is φ = 1916928.

The previous prime is 3115033. The next prime is 3115061. The reversal of 3115047 is 7405113.

3115047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (3115033) and next prime (3115061).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2k-3115047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3115027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39898 + ... + 39975.

It is an arithmetic number, because the mean of its divisors is an integer number (559118).

Almost surely, 23115047 is an apocalyptic number.

3115047 is a deficient number, since it is larger than the sum of its proper divisors (1357897).

3115047 is a wasteful number, since it uses less digits than its factorization.

3115047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79889.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 3115047 is about 1764.9495743505. The cubic root of 3115047 is about 146.0455071754.

The spelling of 3115047 in words is "three million, one hundred fifteen thousand, forty-seven".

Divisors: 1 3 13 39 79873 239619 1038349 3115047